Nonmetals Test

Usage: Free educational test application used to explore the Periodic Table article, by interacting.
Interactive knowledge board.    

How to play: Roll the nonmetal elements on their place in the periodic table and unlock the vault...

Maslow Pyramid Puzzle

Usage: Free educational  puzzle game used to explore the Maslow's hierarchy of needs article, by interacting.
Interactive knowledge board.    

How to play: Drag and drop some human needs to their correct stair to complete the pyramid...

Waterfall Puzzle

Usage: Free online tessellation puzzle used to explore the nature of Balkans, by interacting.
Interactive knowledge board.  

How to play: The player arrange all strange pieces of a puzzle to reveal a picture of a waterfall...